1. They always grab the name brand product, when you could save some serious cash by buying the store brand.
2. They don't know the meaning of the word "shopping list"
3. They always stray down the chips aisle, especially when you are on a diet.
4. They forget about the use of coupons.
5. They always need a snack.
6. They always need a drink.
7. You end up spending at least 15% more, always.